.menu{
    margin-top: 40px;
    height: 40px;
    background-color: #eff2f3;
    display: flex;
    justify-content: space-between;
}
.menu a{
    text-decoration: none;
    text-align: center;
    // display: block;
    // display: inline-block;
}
.menu-left a{
    color: #000;
    display: inline-block;
    // padding: 0 25px;
    font-size: 13px;
}
.menu-left span>a:hover{
    color: ivory;
    background-color: #389eac;
}
.menu-right a{
    display: inline-block;
    padding: 0  10px;
    color: #000;
    font-size: 13px;
}
.menu-right a:visited{
    color: #000;
}
.menu-right a:hover{
    background-color: #389eac;
    color: ivory;
}
.menu-left,.menu-right{
    line-height: 40px;
}
.left{
    display: inline-block;
    width: 80px;
    // background-color: #389eac;
    text-align: center;
}

.left img{
    margin-top: 5px;
    height: 15px;
    transform: rotateZ(90deg);
}
.position-absolute{
    position: absolute;
}
.position-relative{
    position: relative;
}
.drop-down{
    width: 1200px;
    height: 120px;
    background-color: #fff;
    position: absolute;
    text-align: left;
    box-sizing: border-box;
    padding:  10px 30px;
    // display: none;
    // z-index: 10;
}
.drop-down a{
    color: #000;
    line-height: 25px;
    border-radius: 15px;
    // 
    padding: 0 10px;
}.drop-down a:hover{
    background-color: #389eac;
    color: #fff;
}
.drop-down>div:first-child{
    border-bottom: 1px solid #eff2f3;
    padding-bottom: 10px;
    padding-left: 10px;
}
.drop-down div:nth-child(2){
    margin-top: 10px;
    margin-left: 10px;
}